1. (a) 1 (b) 2 (c) 2 (d) 2
2. (c) (i) 1 (ii) 5 (iii) 4 (iv) 2
4. Rectangle, parallelogram, square, rhombus
5. (a) CD (b) BO (c) 
DBA
(d) 
ADC and CBA, AOD and COB
AOB and COD, ADB and DBC
(e) AD
6. (a) False (b) False (c) True (d) False (e) True
7. (a) a = 31° b = 31° c = 59° d = 31° e = 59° f = 90° g = 31°
(b) BF, FE and FD
(c) Any combination of AB, DE and n.
